.11 Waste of Water.

A. Leakage Control. The customer should maintain his service pipe and all piping and fixtures on or in the building so that any loss of water through leakage is kept to a reasonably small amount. If the leakage becomes excessive, it may be treated as a willful waste of water.

B. Willful Waste. Unnecessary or excessive use of water may be treated as a willful waste of water.